The Wristwatch Field Guide

Audemars Piguet Royal Oak Offshore Selfwinding Chronograph 43mm 26420IO

26420IO.OO.A009CA.01

The Audemars Piguet Royal Oak Offshore Selfwinding Chronograph 43mm 26420IO is a current-production integrated bracelet watch with a grey titanium (grade undisclosed) case, finished with satin-brushed and polished; grey ceramic bezel. It measures 43.0 mm across, 14.4 mm thick, and is water resistant to 100 m. Inside is the AP Calibre 4401 automatic (flyback chronograph) movement, with 70 h power reserve. Complications: Chronograph, Date. Brand origin: Switzerland.

Titanium and ceramic integrated bracelet watchesTitaniumDisplay backChronograph
Reference
26420IO.OO.A009CA.01
Type
Integrated bracelet
Price
– · Price on request
Case diameter
43.0 mm
Thickness
14.4 mm
Lug-to-lug
Water resistance
100 m
Weight
Origin
Switzerland
Movement
Automatic (flyback chronograph)
Caliber
AP Calibre 4401
Power reserve
70 h
Complications
Chronograph, Date
Material
Titanium
Grade / type
Titanium (grade undisclosed)
Colour
Grey
Hardness
Construction
Surface treatment
Satin-brushed and polished; grey ceramic bezel
Caseback
Titanium
Nickel-free
Not verified (bracelet, strap, or clasp hardware not confirmed)
Bracelet / strap
Grey rubber (interchangeable)
Matching bracelet
Crystal
Sapphire, AR coated
Display back
Yes
Dial
Slate grey Mega Tapisserie
Lume
Availability
Offered
Status
Current
Medium confidence Verified Jun 2026 Source: Audemars Piguet Maker / listing ↗
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Frequently asked questions

What is the case material of the Audemars Piguet Royal Oak Offshore Selfwinding Chronograph 43mm 26420IO?

The Audemars Piguet Royal Oak Offshore Selfwinding Chronograph 43mm 26420IO has a grey titanium (grade undisclosed) case with a titanium caseback. It is recorded at medium confidence pending a maker-stated material.

What size is the Audemars Piguet Royal Oak Offshore Selfwinding Chronograph 43mm 26420IO?

It is 43.0 mm in diameter, 14.4 mm thick, and water resistant to 100 m.

How much does the Audemars Piguet Royal Oak Offshore Selfwinding Chronograph 43mm 26420IO cost, and is it available?

It is current-production; the guide does not list a price for it.

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